bootm: Adjust arguments of boot_os_fn

Adjust boot_os_fn to use struct bootm_info instead of the separate
argc, argv and image parameters. Update the handlers accordingly. Few
of the functions make use of the arguments, so this improves code size
slightly.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>

arch/sh/lib/bootm.c

@@ -8,6 +8,7 @@
  */
 
 #include <common.h>
+#include <bootm.h>
 #include <command.h>
 #include <env.h>
 #include <image.h>
@@ -39,9 +40,10 @@ static unsigned long sh_check_cmd_arg(char *cmdline, char *key, int base)
 	return val;
 }
 
-int do_bootm_linux(int flag, int argc, char *const argv[],
-		   struct bootm_headers *images)
+int do_bootm_linux(int flag, struct bootm_info *bmi)
 {
+	struct bootm_headers *images = bmi->images;
+
 	/* Linux kernel load address */
 	void (*kernel) (void) = (void (*)(void))images->ep;
 	/* empty_zero_page */